Guide chock



FIG. 1 is a front perspective view of the guide chock.

FIG. 2 is a top plan view thereof.

FIG. 3 is a bottom plan view thereof.

FIG. 4 is front elevation view thereof.

FIG. 5 is a rear elevation view thereof.

FIG. 6 is a left side elevation view thereof.

FIG. 7 is a right side elevation view thereof; and,

FIG. 8 is a rear bottom perspective view thereof.

The surfaces are lightly lined for contour which forms no part of the claimed design. The dash-dash lining indicates disclaimed portions of the ornamental design. The dash-dot-dash linking demarks a disclaimed region of the design and no claim is made to the portion therein. No claim is made to portions of the design which are not shown. 

CLAIM The ornamental design for a guide chock, as shown and described. 